A DFE structure using quadrature components of 8-VSB signals

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this paper, we present a decision feedback equalizer (DFE) that uses the quadrature components of 8-VSB signals in ATSC systems to mitigate multipath distortion efficiently. Unlike the conventional DFE structure for 8-VSB signals in which a real-valued feedback filter is used with real-valued decisions, the proposed DFE uses a complex-valued feedback filter with a complex-valued feedback sample generator. Due to the difficulty in analyzing a recursive system, we present a limited performance analysis on the proposed algorithm that a well-modeled feedback filter successfully cancels multipath channels with quadrature leakages in the absence of noise. For the performance comparison with conventional DFEs in realistic environments, we uses simulation methods.

Original languageEnglish
Article number4586429
Pages (from-to)394-400
Number of pages7
JournalIEEE Transactions on Broadcasting
Issue number3
Publication statusPublished - 2008 Sept

Bibliographical note

Funding Information:
Manuscript received March 20, 2008; revised May 12, 2008. First published August 4, 2008; last published August 20, 2008 (projected). This work was supported by a Korea University Grant and the Brain Korea 21 project in 2008. The author is with the Division of Computer and Communications Engineering, Korea University, Seoul 136-701, Korea (e-mail: wchung@korea.ac. kr). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TBC.2008.2001149


  • 8-VSB
  • Decision feedback equalizer
  • Feedback sample generator
  • Hubert transformation filter
  • Vestigial sideband

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'A DFE structure using quadrature components of 8-VSB signals'. Together they form a unique fingerprint.

Cite this